I HAVE (4) M40A1/M40 BARRELS. ONLY ONE OF THESE BARRELS ARE MARKED 7.62 NATO. THE OTHER 3 ARE NOT MARKED WITH A CALIBER. ALL ARE PARKERIZED AND THE MUZZEL END HAS NO TARGET CROWN. THEY ARE STAMPED ON ONE SIDE WITH A HEART, AND REP. DOES ANYONE HAVE ANY OTHER INFORMATION THAT THEY MIGHT BE ABLE TO SHARE ABOUT THESE? I.E. ABOUT WHAT YEAR THEY WERE PRODUCED? M40? OR M40A1? ANY INSIGHT IS APPRECIATED.
SSG TATE
SSG TATE